我厂生产的纵切机床CM1116-1018皮带轮,零件形状如图1。铸造这样较长、较大、较厚的有色金属皮带轮,对于我车间还是第一次。最初,我们按常规方法,采用金属型浇注,铝液直接从中间Φ62的搭子注入,Φ35孔采用铁芯,浇出的铸件经粗加工后发现表面气孔夹渣严重,皮带轮全部报废(每个皮带轮毛重为12.2kg),为了不误工期,只好选择生产周期短的砂型铸造工艺。 I plant slitting machine CM1116-1018 pulley, part shape shown in Figure 1. Casting such a longer, larger, thicker non-ferrous metal pulley, for the first time I workshop. Initially, we use the conventional method, the use of metal pouring, molten aluminum directly from the middle Φ62 take the child into the Φ35 holes using iron core casting pouring out rough surface porosity found serious slag, pulley all scrapped (each Pulley gross weight of 12.2kg), in order not to mistakes the duration, had to choose a short production cycle sand casting process.